Use at an assay dependent concentration. Can be paired for Sandwich ELISA with Rabbit monoclonal [PSH10-15] to Human ICAM1 antibody (Capture) (HA723184) and Recombinant Human ICAM1 protein (HA210857) as the standard.
ELISA
Use at an assay dependent concentration.
Target
Function
ICAM proteins are ligands for the leukocyte adhesion protein LFA-1 (integrin alpha-L/beta-2). During leukocyte trans-endothelial migration, ICAM1 engagement promotes the assembly of endothelial apical cups through ARHGEF26/SGEF and RHOG activation. Acts as a receptor for major receptor group rhinovirus A-B capsid proteins. Acts as a receptor for Coxsackievirus A21 capsid proteins. Upon Kaposi's sarcoma-associated herpesvirus/HHV-8 infection, is degraded by viral E3 ubiquitin ligase MIR2, presumably to prevent lysis of infected cells by cytotoxic T-lymphocytes and NK cell. Interacts with MUC1 and promotes cell aggregation in epithelial cells. Interacts with ARHGEF26/SGEF. Interacts (on T cell side) with CD81, CD247 and CD9 at immunological synapses between antigen-presenting cells and T cells.
Background References
1. Hayashi T., Takahashi T., Motoya S., Ishida T., Itoh F., Adachi M., Hinoda Y., Imai K. MUC1 mucin core protein binds to the domain 1 of ICAM-1. Digestion 63 Suppl. 1:87-92 (2001)
2. van Buul J.D., Allingham M.J., Samson T., Meller J., Boulter E., Garcia-Mata R., Burridge K. RhoG regulates endothelial apical cup assembly downstream from ICAM1 engagement and is involved in leukocyte trans-endothelial migration. J. Cell Biol. 178:1279-1293 (2007)
Sandwich ELISA analysis of Human ICAM1 matched pair antibodies
Elisa assay was performed by coating wells of a 96-well plate with 100 µl per well of capture antibody (HA723184) diluted in carbonate/bicarbonate buffer, at a concentration of 5ug/ml overnight at 4℃. Wells of the plate were washed, blocked with 150 µl 0.05% tween-20 1% BSA blocking buffer, and incubated with serial diluted Recombinant Human ICAM1 protein (HA210857) starting from 4000 pg/ml to 0 pg/ml and detect antibody (HA723474H, 0.2 µg/ml) for 1 hour at 30℃ with shaking. Detection was performed using an Ultra TMB Substrate for 10 minutes at room temperature in the dark. The reaction was stopped with sulfuric acid and absorbances were read on a spectrophotometer at 450 nm.
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